Black Forest Labs Flux 3 Image To Video Draft API Documentation

Black Forest Labs Flux 3 Image To Video Draft API Documentation

Playground

FLUX 3 Image-to-Video Draft quickly animates a required reference image into a draft clip with prompt-guided motion, optional synchronized audio, and flexible 5-20 second duration for rapid visual iteration.

Features

FLUX 3 Draft Image-to-Video quickly animates a required reference image into a draft video. Use the image to anchor the subject, character, product, scene, or visual style, then test different actions, camera directions, pacing, and atmosphere before moving to a final-quality workflow.

Why Choose This?

• Image-to-video draft generation
  Animate a reference image into a fast motion preview.

• Reference-image consistency
  Use the input image to preserve the subject, composition, character, product, scene, or visual style.

• Fast motion testing
  Quickly test subject movement, camera paths, scene atmosphere, and visual continuity.

• Optional synchronized audio
  Generate matching audio for early ambience, effects, music, or dialogue tests.

• Flexible duration
  Choose a draft video duration from 5 to 20 seconds.

• Multiple aspect ratios
  Supports landscape, portrait, square, and cinematic formats.

Parameters

How to Use

1. Upload a reference image — Provide a clear image with the subject, composition, or style you want to animate.
2. Write the prompt — Describe the motion, action, camera path, environment, timing, lighting, and mood.
3. Choose aspect ratio — Select the output format that matches your target use case.
4. Set duration — Choose a draft duration from 5 to 20 seconds.
5. Configure audio optional — Enable generate_audio when you want to test ambience, effects, music, or dialogue.
6. Submit — Generate the draft image-to-video preview.

Pricing

Pricing is based on billed video duration.

Billed duration is rounded up to the next whole second and capped at 20 seconds. The API accepts durations from 5 to 20 seconds. Audio generation does not add a separate charge.

Example Costs

Best Use Cases

• Portrait animation tests — Quickly test motion from a character or portrait image.
• Product video concepts — Turn product stills into short draft motion previews.
• Character motion exploration — Test poses, gestures, expressions, and movement directions.
• Illustration animation — Animate concept art, stylized characters, or visual designs.
• Social content ideation — Generate quick draft videos for vertical, square, or widescreen content.
• Style testing — Compare different actions, camera paths, and atmospheres from the same reference image.

Pro Tips

• Use a clear reference image with the main subject visible.
• State what should remain consistent from the image and what should change through motion.
• Use specific action words such as turning, walking, rotating, opening, flowing, or drifting.
• Add camera language such as slow push-in, tracking shot, orbit, handheld movement, or fixed frame.
• Start with a simple motion direction, then add more detail after the first draft is stable.
• Use shorter durations for quick iteration and longer durations when the action needs more time to develop.

Related Models

• FLUX 3 Draft Start-End-to-Video — Generate a draft transition between a start image and an end image.
• FLUX 3 Draft Video Extend — Extend an existing video with a new draft continuation.
• FLUX 3 Draft Text-to-Video — Generate draft videos directly from text prompts.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "prompt": "A cinematic ocean wave at sunrise, highly detailed",
  "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
  "aspect_ratio": "21:9",
  "duration": 5,
  "generate_audio": true
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/black-forest-labs/flux-3/image-to-video-draft" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout|deleted) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    *) sleep 2 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters